Lac La Chesnaye
49.325° N, 68.1865° W
Depth contours from the 1977 government survey. Not for navigation.
Download the depth map (SVG)Lac La Chesnaye, Quebec. 49.325° N, 68.1865° W
Maximum depth 45.6 m (1977 survey). Scale bar on the map.
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/qc/lac-la-chesnaye/, compiled October 9, 2026
- Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
- HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
- Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
- Géobase des bathymétries de lac du Québec (GBLQ), Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs. Licensed under CC BY 4.0. Source: Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Données Québec.
- États trophiques des lacs (RSVL), Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs. Licensed under CC BY 4.0. Source: Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Données Québec.
- City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
Lac La Chesnaye is 45.6 m deep at its deepest point, deeper than 92% of the 1,506 surveyed lakes in Quebec. It covers 5.51 km² and lies 9.7 km northwest of Baie-Comeau.
- Maximum depth
- 45.6 msurveyed 1977
- deeper than 92% of the 1,506 surveyed lakes in Quebec
- Area
- 5.51 km²
- larger than 92% of the 29,407 lakes in Quebec
- Shoreline
- 27.9 km
- longer than 91% of the 29,407 lakes in Quebec
- Water clarity
- 2 mSecchi depth, 2022
- less clear than 87% of the 805 monitored lakes in Quebec
- Elevation
- 62 m
Today on the water
8.6 °C
Observed at Baie-Comeau, as of 11:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 12 p.m., wind from the west: the west shore is sheltered, waves build toward the east shore.
| Time | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. | 3 a.m. | 6 a.m. | 9 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | W 20 | W 20 | W 20 | W 20 | NW 30 | NW 30 | NW 20 | NW 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | 50 | 50 | 40 | 40 |
| Waves (est.) m | 0.2 | 0.2 | 0.2 | 0.2 | ||||
| Temp. °C | 8 | 9 | 9 | 6 | 5 | 5 | 5 | 6 |
| Precip. % | 30 | 30 | 0 | 0 | 0 | 0 | 0 | 0 |
Today: A mix of sun and cloud. 30 percent chance of showers this afternoon. Wind becoming west 20 km/h gusting to 40 this morning. High 10. UV index 3 or moderate.
Weather: Baie-Comeau (local forecast), as of 11:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:12 a.m.
- Sunrise
- 6:44 a.m.
- Sunset
- 5:54 p.m.
- Civil dusk
- 6:26 p.m.
- Moonrise
- 5:32 a.m.
- Moonset
- 5:12 p.m.
- Moon
- Waning crescent, 1% lit
Depth
12% of Lac La Chesnaye is shallower than 3 m, and 49% is deeper than 20 m.
How to read it: the lake’s area is sorted from the shore to the deepest point. Where the curve is flat, large areas share one depth (flats and weed beds); where it drops, depth changes quickly (drop-offs).
The government depth survey from 1977 records a maximum depth of 45.6 m, drawn from 19 depth contours.
- Download the depth map (SVG)Printing this page gives the map on one sheet, with scale and sources.
- Official government depth map (PDF)
Not for navigation. Depths are from government surveys and may be outdated.
Water
Trophic status from the latest monitoring: meso-eutrophic (transition).
Clarity was measured with a Secchi disk in 14 years between 2009 and 2022; the latest annual mean is 2 m.